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UK Warmup Follows Latest Cold Spell

By By Jim Andrews, senior forecaster.
December 21, 2011, 1:35:14 AM EST


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Some of the warmest weather of the month thus far will unfold beginning at midweek across the UK and Irish republic.

In London, daytime temperatures will top 10 degrees C (50 F) beginning Wednesday and lasting through Friday. Nighttimes will also warm noticeably. Highest readings will be 12 to perhaps 14 degrees C.

For the UK as a whole, average temperatures during the warmest two days beginning Wednesday will be at least 5 degrees C above the chilly levels of late last week.

The warming will follow on the heels of the season's coldest week to date, and one that, for many, saw the first snow since last winter.

Prompting the shift in weather will be high pressure building west of France, thereby shunting mild Atlantic winds over the British Archipelago.

A cold front from the northwest will sweep in chilly air from the northwest beginning on Friday. Christmas, however, may bring another warmup, so odds of a white Christmas would seem to be low indeed.

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